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/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2015 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <talloc.h>
#include <ldb.h>
#include "db/sysdb.h"
#include "providers/ipa/ipa_dn.h"
static bool check_dn(struct ldb_dn *dn,
const char *rdn_attr,
va_list in_ap)
{
const struct ldb_val *ldbval;
const char *strval;
const char *ldbattr;
const char *attr;
const char *val;
va_list ap;
int num_comp;
int comp;
/* check RDN attribute */
ldbattr = ldb_dn_get_rdn_name(dn);
if (ldbattr == NULL || strcasecmp(ldbattr, rdn_attr) != 0) {
return false;
}
/* Check DN components. First we check if all attr=value pairs match input.
* Then we check that the next attribute is a domain component.
*/
comp = 1;
num_comp = ldb_dn_get_comp_num(dn);
va_copy(ap, in_ap);
while ((attr = va_arg(ap, const char *)) != NULL) {
val = va_arg(ap, const char *);
if (val == NULL) {
goto vafail;
}
if (comp > num_comp) {
goto vafail;
}
ldbattr = ldb_dn_get_component_name(dn, comp);
if (ldbattr == NULL || strcasecmp(ldbattr, attr) != 0) {
goto vafail;
}
ldbval = ldb_dn_get_component_val(dn, comp);
if (ldbval == NULL) {
goto vafail;
}
strval = (const char *)ldbval->data;
if (strval == NULL || strncasecmp(strval, val, ldbval->length) != 0) {
goto vafail;
}
comp++;
}
va_end(ap);
ldbattr = ldb_dn_get_component_name(dn, comp);
if (ldbattr == NULL || strcmp(ldbattr, "dc") != 0) {
return false;
}
return true;
vafail:
va_end(ap);
return false;
}
errno_t _ipa_get_rdn(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *obj_dn,
char **_rdn_val,
const char *rdn_attr,
...)
{
const struct ldb_val *val;
struct ldb_dn *dn;
errno_t ret;
bool bret;
va_list ap;
char *rdn;
dn = ldb_dn_new(mem_ctx, sysdb_ctx_get_ldb(sysdb), obj_dn);
if (dn == NULL) {
return ENOMEM;
}
va_start(ap, rdn_attr);
bret = check_dn(dn, rdn_attr, ap);
va_end(ap);
if (bret == false) {
ret = ENOENT;
goto done;
}
if (_rdn_val == NULL) {
ret = EOK;
goto done;
}
val = ldb_dn_get_rdn_val(dn);
if (val == NULL || val->data == NULL) {
ret = EINVAL;
goto done;
}
rdn = talloc_strndup(mem_ctx, (const char*)val->data, val->length);
if (rdn == NULL) {
ret = ENOMEM;
goto done;
}
*_rdn_val = rdn;
ret = EOK;
done:
talloc_free(dn);
return ret;
}
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